#!/usr/bin/node

if(process.argv.length !== 3){
  console.error('命令行格式：cmd base64_string');
  process.exit(1);
}

const buf = new Buffer(process.argv[2],'base64');
const info = buf.toString('utf8').split(':');

if(info.length !==2){
  console.error('信息有误！');
  process.exit(2);
}

console.log('user name :%s\npassword: %s',info[0],info[1]);

